diff options
Diffstat (limited to 'render/fx_renderer/gles2/shaders/stencil_mask.frag')
-rw-r--r-- | render/fx_renderer/gles2/shaders/stencil_mask.frag | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/render/fx_renderer/gles2/shaders/stencil_mask.frag b/render/fx_renderer/gles2/shaders/stencil_mask.frag index 523adc8..e1fd76a 100644 --- a/render/fx_renderer/gles2/shaders/stencil_mask.frag +++ b/render/fx_renderer/gles2/shaders/stencil_mask.frag @@ -11,12 +11,12 @@ uniform vec2 position; uniform float radius; void main() { - vec2 q = abs(gl_FragCoord.xy - position - half_size) - half_size + radius; - float dist = min(max(q.x,q.y), 0.0) + length(max(q, 0.0)) - radius; - float smoothedAlpha = 1.0 - smoothstep(-1.0, 0.5, dist); - gl_FragColor = mix(vec4(0.0), vec4(1.0), smoothedAlpha); + vec2 q = abs(gl_FragCoord.xy - position - half_size) - half_size + radius; + float dist = min(max(q.x,q.y), 0.0) + length(max(q, 0.0)) - radius; + float smoothedAlpha = 1.0 - smoothstep(-1.0, 0.5, dist); + gl_FragColor = mix(vec4(0.0), vec4(1.0), smoothedAlpha); - if (gl_FragColor.a < 1.0) { - discard; - } + if (gl_FragColor.a < 1.0) { + discard; + } } |